*{box-sizing:border-box}html,body{max-width:100%;min-height:100%;scroll-behavior:smooth}body{font-family:'Hind Siliguri','Noto Sans Bengali',system-ui,-apple-system,sans-serif;background:linear-gradient(180deg,var(--deep) 0%,var(--dark) 48%,#031b16 100%);color:var(--text);line-height:1.75;margin:0;word-wrap:break-word}img{max-width:100%;height:auto}a{color:inherit}.section{padding:76px 0;position:relative}.hero-404{padding:92px 0 82px;background:radial-gradient(circle at 12% 12%,rgba(34,197,94,.36),transparent 34%),radial-gradient(circle at 88% 20%,rgba(16,185,129,.24),transparent 32%),linear-gradient(135deg,#020617 0%,#022c22 58%,#064e3b 100%)}.eyebrow{display:inline-flex;align-items:center;gap:.5rem;padding:.42rem .9rem;border:1px solid var(--line);border-radius:999px;color:#bbf7d0;background:rgba(16,185,129,.1);font-weight:700;margin-bottom:1rem}h1,h2,h3{font-weight:700;color:#f0fdf4;letter-spacing:-.02em}h1{font-size:clamp(2.4rem,7vw,5.2rem);line-height:1.08;margin-bottom:1rem}h2{font-size:clamp(1.45rem,3vw,2.1rem);line-height:1.25;margin-bottom:1rem}p{color:#d1fae5;margin-bottom:1rem}.lead{font-size:1.15rem;color:#d8fbe8}.breadcrumb-wrap{background:rgba(6,59,47,.72);border:1px solid var(--line);border-radius:999px;padding:.55rem 1rem;display:inline-flex;flex-wrap:wrap;gap:.45rem;align-items:center;margin-bottom:1.25rem}.breadcrumb-wrap a{color:#bbf7d0;text-decoration:none;font-weight:700}.breadcrumb-wrap span{color:#f0fdf4}.btn-green{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#02130f;border:0;font-weight:700;border-radius:999px;padding:.9rem 1.45rem;box-shadow:0 12px 26px rgba(34,197,94,.28)}.btn-green:hover,.btn-green:focus{color:#02130f;transform:translateY(-1px)}.btn-outline-green{border:1px solid var(--primary);color:#bbf7d0;border-radius:999px;padding:.86rem 1.35rem;font-weight:700;background:rgba(2,44,34,.22)}.btn-outline-green:hover,.btn-outline-green:focus{background:rgba(34,197,94,.16);color:#f0fdf4}.glass-card,.info-card,.soft-panel{height:auto;background:linear-gradient(180deg,rgba(6,59,47,.92),rgba(2,44,34,.86));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.35rem;word-break:normal;overflow-wrap:anywhere}.soft-panel{background:linear-gradient(135deg,rgba(220,252,231,.11),rgba(16,185,129,.08))}.big-code{display:inline-flex;align-items:center;justify-content:center;border-radius:28px;border:1px solid rgba(34,197,94,.35);background:radial-gradient(circle at 25% 18%,rgba(34,197,94,.28),transparent 42%),linear-gradient(135deg,rgba(2,6,23,.52),rgba(6,78,59,.8));padding:2rem;box-shadow:var(--shadow)}.big-code span{font-size:clamp(4.5rem,13vw,8rem);line-height:1;font-weight:800;color:#bbf7d0;text-shadow:0 0 30px rgba(34,197,94,.32)}.icon-box{width:48px;min-width:48px;min-height:48px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#02130f;font-size:1.35rem;margin-bottom:.9rem}.section-light{background:linear-gradient(180deg,rgba(6,78,59,.5),rgba(2,44,34,.25))}@media (max-width:991.98px){.section{padding:56px 0}.hero-404{padding:68px 0 58px}.glass-card,.info-card,.soft-panel{padding:1.1rem}.big-code{padding:1.3rem}}